The lid has an opening that limits the amount of liquid so it's not likely to spill, and has an air port to make sipping easy.

The lid comes apart to be cleaned properly. We recommend that the tumbler and its lid be washed by hand.

And please -- Don't put the tumbler into the microwave!

Here's a quote from the Kennedy Center's new Artistic Advisor for Jazz:

There is nothing like Jazz at the Kennedy Center. We have a stage that faces out on the nation, and I want to use it to tell America that jazz is alive and well. I hope you will join me for an exciting season featuring the best of jazz present and future.